|
|
|
|
|
|
|
|
|
Chromatic dispersion
| Англо-русский глоссарий по связи |
- Расширение светового импульса, вызванное разницей скоростей распространения волн различной длины, составляющих данный импульс (см. также коэффициент преломления)
- The frequency dependence of the phase velocity in a transparent medium
- Wavelength-dependent pulse spreading in optical fibers, measured in pico seconds (of pulse spreading) per nanometer (of source bandwidth) per kilometer (of fiber length). it is the sum of waveguide and material dispersion. reduced fiber bandwidth caused by different wavelengths of light traveling at different speeds down the optical fiber. chromatic dispersion occurs because the speed at which an optical pulse travels depends on its wavelength, a property inherent to all optical fiber. may be caused by material dispersion, waveguide dispersion, and profile dispersion.
- Хроматическая дисперсия
|
Хроматическая дисперсия, русский
|
Chromatic, английский
- Having to do with color, or wavelength.
- Relating to or produced by color.
Chromatic aberration, английский
- Optical term, which refers to the distortion of an image as a result of a scattered focal point caused by a defect in a lens. a combination of lens can be used to correct this effect.
- Chromatic aberration. failure of a lens to focus all colours at the same point. the aberrations can be along the optical axis (longitudinal ca, or loca) or off-axis (lateral or transverse ca, tca).
- An optical defect of a lens which causes different colors or wave lengths of light to be focused at different distances from the lens. it is seen as color fringes or halos along edges and around every point in the image.
- Also known as the purple fringe effect. it is common in two megapixel and higher resolution digital cameras (especially those with long telephoto zoom lenses) when a dark area is surrounded by a highlight. along the edge between dark and light you will see a line or two of purple or violet colored pixels that shouldn`t be there.
- Also known as color fringing, chromatic aberration occurs when the collective color wavelengths of an image fail to focus on a common plane. the results of chromatic aberration are most noticeable around the edges of high-contrast images, especially toward the edges of the frame. chromatic aberration is most common on less expensive lenses, although even the best optics can occasionally display lower levels of chromatic aberration, under certain conditions.
- In terms of lens optics it is the failure of the lens to focus all colours (rgb) at the same point. it shows up as colour fringes in areas of the image where dark meet light (think edge of a building against the sky). it is more common in wide angle lenses, and those of inferior optics (kit lenses). it is correctable, to some degree, using photoshop, lightroom or software of your choice.
- Also known as purple fringing. it is fairly common in 2mp digital cameras and above, especially if they have long telephoto lenses. you can see it when a dark area is surrounded by a highlight. in between the dark and light, you may see a band of purple pixels that shouldn’t be there. there are ways of removing this which i have covered in the photoshop section.
- When a lens causes white light to be broken into various component colors with each focus at a different distance from the lens, commonly producing color fringe around a viewed image.
Chromatic aberration or, английский
Transverse (lateral)
Chromatic aberration., английский
Longitudinal (axial)
Chromatic aberrations, английский
Image distortions caused by wavelength-dependent optical effects
Chromatic adaptation, английский
The eye`s ability to compensate, after a few minutes, for variations - sometimes drastic ones - in the color of light sources so that everything appears normal. tip: since the film doesn`t compensate, you may want to use a color-temperature meter.
Chromatic color, английский
Chromatic dispersion (cd), английский
The variation in the velocity of light (group velocity) as a function of wavelength. it causes pulses of a modulated laser source to broaden when traveling within the fiber, up to a point where pulses overlap and bit error rate increases
Chromatic dispersion coefficient, английский
Chromatic gray, английский
Grays that exhibit a subtle, but discernible hue.
Chromatic simultaneous contrast, английский
Simultaneous contrast concerning color changes that occur due to the influence of the surrounding colors
Chromatic аberration, английский
Chromaticity, английский
- The color quality of light which is defined by the wavelength (hue) and saturation. chromaticity defines all the qualities of color except its brightness.
- The color quality of light definable by its dominant (or complementary) wavelength and its purity, taken together. chrome green 1. a green pigment made by blending lead chromate yellow and iron blue pigments. 2. chromium oxide.
- Цветность; хроматичность
- The quality of color expressed as a function of wavelength and purity.
Chromaticity diagram, английский
Chromaticity, chromaticity coordinates, английский
Dimensions of a color stimulus expressed in terms of hue and saturation, or redness-greenness and yellowness-blueness, excluding the luminous intensity. generally expressed as a point in a plane of constant luminance. see cie xy chromaticity diagram.
Chromatics, английский
Dispersal, английский
- Рассеяние, дисперсия; диспергирование
- The spreading of individuals away from each other, e.g., the offspring from their parents and from regions of high density to regions of low density; (analog to diffusion, as seen with the import of the potato beetle to europe). d. capacity: d. polymorphism: two or more types of dispersal structures found within a species or among the progeny of an individual. 4 4
Dispersal airfield, английский
Dispersancy, английский
Ability of an oil to disperse and suspend potential deposit-forming materials so that they can be removed from the system when the oil is drained.
Dispersant, английский
- In lubrication, a term usually used interchangeably with detergent. an additive, usually nonmetallic ("ashless"), which keeps fine particles of insoluble materials in a homogeneous solution. hence, particles are not permitted to settle out and accumulate.
- An admixture which is capable of maintaining finely ground materials in suspension; used as a slurry thinner or grinding aid.
- A dispersing agent, often of a surface active chemical, that promotes formation of a dispersion or maintains a state of dispersion by preventing settling or aggregation.
- An additive that keeps insoluble contaminants dispersed (colloidally suspended) in a lubricant, preventing the particles from settling and accumulating. dispersants help prevent the buildup of sludge, varnish and other deposits.
- A non-metallic engine oil additive that helps to prevent sludge, varnish, etc., by keeping particles suspended in a colloidal state. similar to and ordinarily used with detergents, dispersants are capable of keeping large quantities of particles in suspension, and they are ashless when burned.
Расширение, русский
Распространения, русский
Коэффициент, русский
- ~ matrix of a system of linear equations матрица коэффициентов системы линейных уравнений
- 1. в математике – обычно постоянная или известная величина, служащая множителем для другой, обычно переменной или неизвестной величине. 2. в психологии часто – некая числовая величина, отражающая степень выраженности, развитости определенного психологичес
- 1. в математике – обычно постоянная или известная величина, служащая множителем для другой, обычно переменной или неизвестной величине. 2. в психологии часто – некая числовая величина, отражающая степень выраженности, развитости определенного психологического качества, характеристики.
- , в статистике - показатель, выраженный относительными величинами. отражает: скорость развития какого-либо явления (т. н. коэффициент динамики), частоту возникновения явления (напр., коэффициент рождаемости), взаимосвязь качественно различных явлений (напр., коэффициент плотности населения), степень использования материальных, трудовых или денежных ресурсов (напр., коэффициент эффективности), вариацию величин признака (напр., коэффициент ритмичности).
- (от лат . co - совместно и efficiens - производящий), множитель, обычно выражаемый цифрами. если произведение содержит одну или несколько переменных (или неизвестных) величин, то коэффициентом при них называют также произведение всех постоянных, в т. ч. и выраженных буквами. многие коэффициенты в физических законах имеют особые названия, напр. коэффициент трения, коэффициент поглощения света.
- Зависимость экспериментальной и теоретической величин статически неопределимая конструкция: система, для описания работы которой недостаточно одних уравнений равновесия оболочка вращения: оболочка, геометрическая форма которой определяется срединной поверхностью, образованнаяпосредством поворота меридиональной образующей вокруг оси.
Преломления, русский
Dependence, английский
- Зависимость (взаимосвязь, существующая между событием и последующей работой, которая означает, что событие должно свершиться до того, как начнется эта работа; точно такая же зависимость существует между работой и последующим событием)
- A state in which a person is addicted to a drug such as cannabis or alcohol but does not suffer physical effects if he or she stops taking it
- The fact of needing the support of something or someone such as a carer, nurse or doctor, or of being addicted to a drug
- Зависимость
- A set of attributes is said to be dependent if the state of a subset of the attributes affects the (distribution of) the state of the remaining attributes. for two variables, the attributes x and y are dependent if pr(x y) pr(x)pr(y), where pr(.) is a probability measure. if the converse holds (pr(x y)= pr(x)pr(y)), then the attributes are said to be independent.
- The state in which one entity relies upon specific hardware, software, or specific events for its own definition or functionality.
Transparent, английский
- An object or material that transmits both light and undiffused images. tip: try lighting a plain back-ground directly behind the object, not the object.
- Capable of transmitting light so that objects or images can be seen as if there were no intervening material.
- Общедоступная информация в вто присутствует принцип открытого обмена информацией, осуществляемый с целью осведомить всех членов о принимаемых решениях и вопросах, обсуждаемых на совещаниях и встречах маленьких групп
Wavelength, английский
- Light is made up of electromagnetic waves; wavelength is the crest (peak)-to-crest distance between two adjacent waves.
- Для оптических сетевых устройств длина волны светового потока составляет 850, 1300, 1310 и 1550 нм
- The optical term for frequency. fiber optics generally uses the 850 nm, 1300/1310 nm, 1550 nm and 1625 nm wavelengths for transmission purpose due to the marriage of performance with light sources, optical fibers, and optical detector technologies
- Distance in the direction of propagation of a periodic wave between two successive points at which the phase is the same. tel 203•377•8282 fax 203•378•2457 e-mail res_sales@oriel.com url www.oriel.com 9-17 polarization lenses optics prisms & filters beam splitters windows, substrates & mirrors properties of optical coatings optical materials
- The length of the light wave, usually measured from crest to crest, which determines its color. common units of measurement are the micrometer (micron), the nanometer, and the angstrom unit.
- The spatial period of a plane wave
- The distance between "waves" in the electromagnetic field, specified as angstroms or nanometers.
- The distance an electromagnetic wave travels in the time it takes to oscillate through a complete cycle. wavelengths of light are measured in nanometers (10-9 m) or micrometers (10-6m).
- The linear distance occupied by one complete cycle of vibration of an energy form from any given point to the next point characterized by the same phase.
- For light waves or sound waves, the distance between two successive points of a periodic wave in the direction of propagation, in which the oscillation has the same phase; the distance the wave travels in one period. for light waves three common units of wavelength are: micrometer, nanometer, and angstrom. wave molding, oundy molding, swelled chamfer, undulating molding, undy
- Длина волны wax 1. воск 2. парафин 3. пластичная глина way 1. путь; дорога 2. проход; переход 3. колея 4. направление, сторона 5. амер, расстояние
- The physical length between corresponding points of successive cycles of a wave. low frequencies have long wavelengths; high frequencies have short wavelengths.
- The distance between the crests of a wave in a radio signal, measured as the speed of light divided by the frequency in- hz.
- The distance between one peak of a wave and the next peak
- Light is measured by its wavelength (in nanometers) or frequency (in hertz). one wavelength. equals the distance between two successive wave crests.
- The distance between two points having the same phase in two consecutive cycles of a periodic wave, along a line in the direction of propagation.
- Distance between repeating values of a wave — for example, the distance from one peak to the next peak on a sine wave. wavelength is a fundamental descriptor when discussing wave behavior, system sensitivity, and diffraction effects.
- Distance between repeating values of a wave. for example, the distance from one peak to the next peak on a sine wave.
- Distance between repeating values of a wave. for example, the distance from one peak to the next peak on a sine wave. wavelength is generally measured in nanometers when considering uv-a radiation (for example, 365 nm). compare frequency.
- Distance between repeating units of a wave. for example, the distance from one peak to the next peak.
- Distance needed in the propagation direction for a wave to go through a complete cycle.7,21
Dispersion, английский
- Увеличение ширины импульса сигнала при его распространении по оптоволокну. основной фактор, ограничивающий полосу пропускания многомодового оптоволокна.
- Дисперсия.
- Эффект расширения световых импульсов во время их передачи по оптическому волокну. дисперсия пропорциональна длине кабеля (см. также хроматическая дисперсия).
- Refers to the spread of values observed for a variable. the standard deviation is a measure of dispersion, in contrast to the mean which is a measure of central tendency or location.
- The cause of bandwidth limitations in fiber. in multimode systems, modal dispersion is caused by differential optical path lengths known as differential path delay. for singlemode systems, chromatic dispersion is a combination of material dispersion (caused by the line width of the laser source) and waveguide dispersion (caused by the difference in the speed of light in the core and the cladding of the fiber). another type of dispersion is polarization mode dispersion (pmd), which is caused by random vibration, temperature variations, and bending of the fibers known as birefringence
- (1) the variation in the refractive index of a medium as a function of wavelength. (2) the property of an optical system which causes the separation of the monochromatic components of radiation.
- The dependence of the phase velocity in a medium on the optical frequency or the propagation mode
- The stretching of light pulses as they travel in an optical fiber, which increases their duration. the temporal spreading of a light signal in an optical waveguide caused by light signals traveling at different speeds through a fiber either due to modal or chromatic effects.
- This occurs when white light is split into separate wave lengths and component colors.
- Модовая дисперсия dispersion-compensating fiber волокно с компенсацией дисперсии
- Also known as "fire," dispersion refers to the separation of white light into different colors.
- Separation of white light into spectral colours, each of which vibrates at a different frequency. also called fire.
- Sometimes referred to as fire, dispersion is the break-up of white light into a spectrum of colors.
- 1. a system consisting of finely divided particles and the medium in which they are distributed. 2. separation of light into colors by diffraction or refraction. 3. a qualitative estimation of the separation and uniform distribution of fibers in the liquid during the production of a wet-formed nonwoven fabric.
- Losses`, pi потери воды при капельном орошении за счет фильтрации за пределы очага увлажнения
- The separation of light of different frequencies due to different degrees of refraction
- In acoustics, variation of wave phase with frequency.
- In acoustics, variation of wave phase with frequency.7
|
Коэффициент хроматической дисперсии, русский
Хроматическая дисперсия, русский
|
|
|
|
|
|
|
